diff --git a/.travis.yml b/.travis.yml
index def8304a282f6c866baeae964c2d67e7d1ef1fba..3858585979d1738fd648aeb20ae598bf0fa5eb44 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -79,7 +79,7 @@ matrix:
       - $HOME/.macports-ci-ccache
 # osx serial macports debug variant
   - os: osx
-    osx_image: xcode8.2
+    osx_image: xcode8.3
     env: PLUMED_MACPORTS="plumed +allmodules +python27"
     cache:
       directories: